PC corrugated board has the merits of good weather resisting property,impact resistance, high light transmission. It is widely used in the roof for warehouses and easy constructions, such as stadium, swimming pools, skiing fields, station rest pavilions and so on. PVC corrugated board has the merits of erosion resistance, workability and low cost. It is widely used in workshops, warehouses, carports, sheds, agricultural and construction sheds, etc.